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|
#----------------------------------------------------------------------
# Name: wx.lib.stattext
# Purpose: A generic wxGenStaticText class. Using this should
# eliminate some of the platform differences in wxStaticText,
# such as background colours and mouse sensitivity.
#
# Author: Robin Dunn
#
# Created: 8-July-2002
# RCS-ID: $Id$
# Copyright: (c) 2002 by Total Control Software
# Licence: wxWindows license
#----------------------------------------------------------------------
# 12/12/2003 - Jeff Grimmett (grimmtooth@softhome.net)
#
# o 2.5 compatability update.
# o Untested.
#
import wx
BUFFERED = 0 # In unbuffered mode we can let the theme shine through,
# otherwise we draw the background ourselves.
if wx.Platform == "__WXMAC__":
from Carbon.Appearance import kThemeBrushDialogBackgroundActive
#----------------------------------------------------------------------
class GenStaticText(wx.PyControl):
labelDelta = 1
def __init__(self, parent, ID=-1, label="",
pos=wx.DefaultPosition, size=wx.DefaultSize,
style=0,
name="genstattext"):
wx.PyControl.__init__(self, parent, ID, pos, size, style|wx.NO_BORDER,
wx.DefaultValidator, name)
wx.PyControl.SetLabel(self, label) # don't check wx.ST_NO_AUTORESIZE yet
self.InheritAttributes()
self.SetInitialSize(size)
self.Bind(wx.EVT_PAINT, self.OnPaint)
if BUFFERED:
self.defBackClr = self.GetBackgroundColour()
self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground)
else:
self.SetBackgroundStyle(wx.BG_STYLE_SYSTEM)
def SetLabel(self, label):
"""
Sets the static text label and updates the control's size to exactly
fit the label unless the control has wx.ST_NO_AUTORESIZE flag.
"""
wx.PyControl.SetLabel(self, label)
style = self.GetWindowStyleFlag()
self.InvalidateBestSize()
if not style & wx.ST_NO_AUTORESIZE:
self.SetSize(self.GetBestSize())
self.Refresh()
def SetFont(self, font):
"""
Sets the static text font and updates the control's size to exactly
fit the label unless the control has wx.ST_NO_AUTORESIZE flag.
"""
wx.PyControl.SetFont(self, font)
style = self.GetWindowStyleFlag()
self.InvalidateBestSize()
if not style & wx.ST_NO_AUTORESIZE:
self.SetSize(self.GetBestSize())
self.Refresh()
def DoGetBestSize(self):
"""
Overridden base class virtual. Determines the best size of
the control based on the label size and the current font.
"""
label = self.GetLabel()
font = self.GetFont()
if not font:
font = wx.SystemSettings.GetFont(wx.SYS_DEFAULT_GUI_FONT)
dc = wx.ClientDC(self)
dc.SetFont(font)
maxWidth = totalHeight = 0
for line in label.split('\n'):
if line == '':
w, h = dc.GetTextExtent('W') # empty lines have height too
else:
w, h = dc.GetTextExtent(line)
totalHeight += h
maxWidth = max(maxWidth, w)
best = wx.Size(maxWidth, totalHeight)
self.CacheBestSize(best)
return best
def Enable(self, enable=True):
"""Overridden Enable() method to properly refresh the widget. """
wx.PyControl.Enable(self, enable)
self.Refresh()
def Disable(self):
"""Overridden Disable() method to properly refresh the widget. """
wx.PyControl.Disable(self)
self.Refresh()
def AcceptsFocus(self):
"""Overridden base class virtual."""
return False
def GetDefaultAttributes(self):
"""
Overridden base class virtual. By default we should use
the same font/colour attributes as the native StaticText.
"""
return wx.StaticText.GetClassDefaultAttributes()
def ShouldInheritColours(self):
"""
Overridden base class virtual. If the parent has non-default
colours then we want this control to inherit them.
"""
return True
def OnPaint(self, event):
if BUFFERED:
dc = wx.BufferedPaintDC(self)
else:
dc = wx.PaintDC(self)
width, height = self.GetClientSize()
if not width or not height:
return
if BUFFERED:
clr = self.GetBackgroundColour()
if wx.Platform == "__WXMAC__" and clr == self.defBackClr:
# if colour is still the default then use the theme's background on Mac
themeColour = wx.MacThemeColour(kThemeBrushDialogBackgroundActive)
backBrush = wx.Brush(themeColour)
else:
backBrush = wx.Brush(clr, wx.SOLID)
dc.SetBackground(backBrush)
dc.Clear()
if self.IsEnabled():
dc.SetTextForeground(self.GetForegroundColour())
else:
dc.SetTextForeground(wx.SystemSettings.GetColour(wx.SYS_COLOUR_GRAYTEXT))
dc.SetFont(self.GetFont())
label = self.GetLabel()
style = self.GetWindowStyleFlag()
x = y = 0
for line in label.split('\n'):
if line == '':
w, h = self.GetTextExtent('W') # empty lines have height too
else:
w, h = self.GetTextExtent(line)
if style & wx.ALIGN_RIGHT:
x = width - w
if style & wx.ALIGN_CENTER:
x = (width - w)/2
dc.DrawText(line, x, y)
y += h
def OnEraseBackground(self, event):
pass
#----------------------------------------------------------------------
|
